کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4527057 | 1323881 | 2006 | 15 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Real-time forecasting of water table depth and soil moisture profiles Real-time forecasting of water table depth and soil moisture profiles](/preview/png/4527057.png)
We present a method for real-time forecasting of water table depth and soil moisture profiles. The method combines a simple form of data-assimilation with a moving window calibration of a deterministic model describing flow in the unsaturated zone and local as well as regional drainage. The local drainage level is calibrated on-line using a moving window calibration. Assigning more weight to the last available measurements then yields a form of model adaptation that is in between on-line calibration and data-assimilation (i.e. a simplified form of Newtonian nudging). Five-day hydrological forecasts are performed based on 5-day weather forecasts, while on-line observations of phreatic level and soil moisture content are assimilated on a daily basis. Advantages of the proposed method are that it improves the real-time forecasts compared to off-line calibration and ordinary moving window calibration and that it yields physically consistent soil moisture profiles.
Journal: Advances in Water Resources - Volume 29, Issue 5, May 2006, Pages 692–706